Data/hora: 10/06/2024 17:10:10

Provedor de dados: | 5
País: | France
Título: | Nutrients from salmon parents alter selection pressures on their offspring
Autores: | Auer, Sonya K.; Anderson, Graeme J.; Mckelvey, Simon; Bassar, Ronald D.; Mclennan, Darryl; Armstrong, John D.; Nislow, Keith H.; Downie, Helen K.; Mckelvey, Lynn; Morgan, Thomas A. J.; Salin, Karine; Orrell, Danielle L.; Gauthey, Alice; Reid, Thomas C.; Metcalfe, Neil B.
Data: | 2018-02
Ano: | 2018
Palavras-chave: | Eco-evolutionary dynamics; Eco-evolutionary feedbacks; Natural selection; Niche construction; Salmo salar; Selection differential; Selection gradient.
Resumo: | Organisms can modify their surrounding environment, but whether these changes are large enough to feed back and alter their evolutionary trajectories is not well understood, particularly in wild populations. Here we show that nutrient pulses from decomposing Atlantic salmon (Salmo salar) parents alter selection pressures on their offspring with important consequences for their phenotypic and genetic diversity. We found a strong survival advantage to larger eggs and faster juvenile metabolic rates in streams lacking carcasses but not in streams containing this parental nutrient input. Differences in selection intensities led to significant phenotypic divergence in these two traits among stream types. Stronger selection in streams with low parental nutrient input also decreased the number of surviving families compared to streams with high parental nutrient levels. Observed effects of parent-derived nutrients on selection pressures provide experimental evidence for key components of eco-evolutionary feedbacks in wild populations.
Tipo: | Text
Idioma: | Inglês

Identificador:

https://archimer.ifremer.fr/doc/00414/52586/53426.pdf

https://archimer.ifremer.fr/doc/00414/52586/53427.pdf

DOI:10.1111/ele.12894

https://archimer.ifremer.fr/doc/00414/52586/

Editor: | Wiley
Formato: | application/pdf
Fonte: | Ecology Letters (1461-023X) (Wiley), 2018-02 , Vol. 21 , N. 2 , P. 287-295

Fonte:

2017 The Authors. Ecology Letters published by CNRS and John Wiley &amp; Sons Ltd

info:eu-repo/semantics/openAccess

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